Demand for IT professionals with Linux skills is stronger than ever, but a new worldwide survey of more than 850 hiring managers and 2,600 Linux professionals indicates that companies are having a hard time finding qualified hires.

Among the findings of the survey, which was conducted by careers website Dice and the Linux Foundation, 93 per cent of hiring managers said they were planning to take on new Linux talent within the next six months – a 3 per cent increase over 2012's numbers.

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You don't need to be a genius to debug a pf.conf firewall ruleset, you just need the guts to run tcpdump